一个按钮控制文本框的显示和隐藏 我的错在哪里???
namespace 11{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
textBox1.Visible = true;
textBox1.Visible = false;
}
}
}

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